On 1/7/18 3:45 AM, Ido Schimmel wrote: > Similar to IPv4, when the carrier of a netdev changes we should toggle > the 'linkdown' flag on all the nexthops using it as their nexthop > device. > > This will later allow us to test for the presence of this flag during > route lookup and dump. > > Up until commit 4832c30d5458 ("net: ipv6: put host and anycast routes on > device with address") host and anycast routes used the loopback netdev > as their nexthop device and thus were not marked with the 'linkdown' > flag. The patch preserves this behavior and allows one to ping the local > address even when the nexthop device does not have a carrier and the > 'ignore_routes_with_linkdown' sysctl is set. > > Signed-off-by: Ido Schimmel <ido...@mellanox.com> > --- > include/net/ip6_route.h | 1 + > net/ipv6/addrconf.c | 2 ++ > net/ipv6/route.c | 23 +++++++++++++++++------ > 3 files changed, 20 insertions(+), 6 deletions(-)
Acked-by: David Ahern <dsah...@gmail.com>